Sale 1:

https://backpack.tf/profiles/76561198125791160#!/compare/1531008000/1531094400

https://backpack.tf/profiles/76561198155443297#!/compare/1530316800/1531267200

Sold for 9 keys + Grail Wanted(7.5)

Total is 16.5 keys

Sale 2:

https://backpack.tf/profiles/76561198155443297#!/compare/1532995200/1533081600

Bulk.

Sale 3:

https://backpack.tf/profiles/76561198080179568#!/compare/1532995200/1533081600

https://backpack.tf/profiles/76561198340433519#!/compare/1532908800/1533168000

Sold for 12 keys

Sale 4:

https://backpack.tf/profiles/76561198153428790#!/compare/1527984000/1532131200

https://backpack.tf/profiles/76561198045402729#!/compare/1531958400/1532131200

Untrace.

Sale 5:

https://backpack.tf/profiles/76561198045402729#!/compare/1532131200/1532217600

https://backpack.tf/profiles/76561198091230177#!/compare/1532131200/1532217600

Sold for Blizzardy Ketche + 2 keys

Ketche Mini:

https://backpack.tf/suggestion/5b8f705ccf6c75628d473c23

Suggestion for 9 keys

Total is 11 keys

Sale 6:

https://backpack.tf/profiles/76561198091230177#!/compare/1532649600/1532736000

https://backpack.tf/profiles/76561198137387865#!/compare/1532649600/1532736000

Untrace.

Sale 7:

https://backpack.tf/profiles/76561198138712780#!/compare/1530835200/1531180800

QS

Sale 8:

https://backpack.tf/profiles/76561198349886701#!/compare/1531353600/1531440000

https://backpack.tf/profiles/76561198296239543#!/compare/1531267200/1531353600

Sold for 14 keys (Traceable as other 2 hats sold can be traced together)

Sale 9:

https://backpack.tf/profiles/76561198296239543#!/compare/1531353600/1531440000

https://backpack.tf/profiles/76561198072898758#!/compare/1531353600/1531440000

Untrace.

Sale 10:

https://backpack.tf/profiles/76561198072898758#!/compare/1531440000/1531526400

https://backpack.tf/profiles/76561198070295514#!/compare/1527206400/1531440000

https://backpack.tf/profiles/76561198302201202#!/compare/1531353600/1531440000

https://backpack.tf/profiles/76561198219200107#!/compare/1531180800/1531526400

https://backpack.tf/profiles/76561198197481041#!/compare/1531267200/1531612800

Untrace.

Sale 11, 12, 13, 14, 15:

https://marketplace.tf/items/601;5;u29

Sold for 27.99, 15.1, 14.5, 25.99, 25.99 USD

Keys at 1.99, 1.93, 1.90, 1.88, 1.88 USD

Totals are: 14.06, 7.82, 7.11, 13.82, 13.82 USD

Total sales @:

7.11, 7.82, 11, 12, 12.82, 13.82, 14,06 16.5 keys

https://i.imgur.com/dUyzES0.jpg

Buyers up to 10 keys,

Unsold for a month at 14.

Considering 11 sold quick, taking 12 - 14 keys.